- Tomalak, M., J. Michalski, and J. Grocholski. 1984. The influence of nematodes on the structure of genitalia of Tomicus piniperda (Coleoptera: Scolytidae) . Journal of Invertebrate Pathology 43:358-362.
- Tomalak, M., H., and E. Welch. 1981. Neoaplectana carpocapsae Weiser (Rhabditoidea, Nematoda) DD-136 as a potential biocontrol agent against Hylurgopinus rufipes Eichhoff (Scolytidae, Coleoptera). Pages 14-23 in E. S. Kondo, Y. Hiratsuka, and W. B. G. Denyer (eds.), Proceedings, Dutch elm disease symposium and workshop, 5-19 October 1981, Winnipeg, Manitoba. Canada Department of the Environment, Canadian Forestry Service and Province of Manitoba, Department of Natural Resources. 517 p.
- Tomalak, M., H., and E. Welch. 1982a. Histological degradation as a cause of bark beetle mortality in nematode infections . Entomological Society of Manitoba, Proceedings 38:25-26.
- Tomalak, M., H., and E. Welch. 1982b. Pathological effects of nematode parasitism in bark beetles (Coleopetera: Scolytidae). Mol. Biochem. Parasitol. 1982(Suppl.):411-412.
- Tomalak, M., H., and E. Welch. 1983. Parasite overcrowding and its effect on the nematodes infesting bark beetles [abstract] . Entomological Society of Manitoba, Proceedings 39:21.
- Tomalak, M., H. E. Welch, and T. D. Galloway. 1988. Interaction of parasitic nematode Parasitaphelenchus oldhami (Nematoda: Aphenchoididae) and a bacterium in Dutch elm disease vector Hylurgopinus rufipes (Coleoptera: Scolytidae) . Journal of Invertebrate Pathology 52:301-308.
- Tomalak, M., H. E. Welch, and T. D. Galloway. 1989a. Effect of crowding on Sulphuretylenchus spp (Nematoda: Allantonematidae) in the hemocoel of their bark beetle hosts (Coleoptera: Scolytidae). Canadian Entomologist 121:821-822.
- Tomalak, M., H. E. Welch, and T. D. Galloway. 1989b. Nematode parasites of bark beetles (Scolytidae) in southern Manitoba, with descriptions of three new species of Sulphuretylenchus Ruhm (Nematoda: Allantonematidae) . Canadian Journal of Zoology 67:2497-2505.
- Tomalak, M., H. E. Welch, and T. D. Galloway. 1989c. Pathology of Aphelenchoides pityokteini (Nematoda: Aphelenchidae) in the malpighian tubules of Pityokteines sparsus (Coleoptera: Scolytidae) . Journal of Invertebrate Pathology 53:140-141.
- Tomalak, M., H. E. Welch, and T. D. Galloway. 1989d. Parasitism of Parasitorhabditis obtusa and Parasitorhabditis autographi (Nematoda: Rhabditidae) in the digestive tract of their bark beetle (Coleoptera: Scolytidae) hosts . Journal of Invertebrate Pathology 53:57-63.
- Tomalak, M., H. Welch, and T. Galloway. 1990. Pathogenicity of Allantonematidae (Nematoda) infecting bark beetles (Coleoptera: Scolytidae) in Manitoba . Canadian Journal of Zoology 68:89-100.